diff --git a/requirements.txt b/requirements.txt
index c5d2227..c1cb13d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -44,7 +44,7 @@ packaging==17.1
 pandas==0.23.3
 partd==0.3.8
 plotly==3.0.0
-protobuf==3.6.0
+protobuf==3.18.3
 psutil==5.4.6
 pyasn1==0.4.3
 pyasn1-modules==0.2.2